Ncert- CLASS 6 – SCIENCE- Chapter 10: Fun with Magnets 2 Welcome to your Ncert- CLASS 6 - SCIENCE- Chapter 10: Fun with Magnets 2 1. Which shape of magnet is used in electric bell? Ball-ended magnet Bar magnet Cylindrical magnet Horse-shoe shaped None 2. What is the circular enclosure that the magnetic compass is placed in ? stainless steel case iron case nickel case aluminium case None 3. What kind of magnet is used in a magnetic compass ? none of the above permanent magnet electromagnet temporary magnet None 4. Which effect of force is caused by the magnetic force between a magnet and a magnetic substance? Change of chemical nature. Change of position. Change of shape. Change of physical state. None 5. How is a compass used to find directions? When suspended freely the compass needle aligns itself in the north-south direction which gives us the direction of the north and south poles When suspended freely the compass needle starts rotating in a particular plane and the axis of rotation perpendicular to the plane gives us north and south poles When suspended freely the compass needle aligns itself in the vertically up-down direction which gives us the perpendicular direction to the needle as north and south poles When suspended freely the compass needle aligns itself in the east-west direction which gives us the perpendicular direction to the needle as north and south poles None 6. The answer to which of the following options will distinguish between a magnetic material and a non-magnetic material? Does it affect the direction in which a compass needle points? Is it a conductor or an insulator? Can it be given an electric charge? Is it a metal of a non metal? None 7. Complete the following statements with an appropriate word / term to be filled in the blank space(s).A compass needle is a ________ magnet : big fieldless super small None 8. Which of the following will help demagnetizing a magnet ? Hammering the magnet Putting in contact with iron Putting it in the water Cooling it None 9. The N-pole of a compass points to the .............. pole of a permanent magnet north-east south south-east north None 10. Which types of magnet have two poles close to each other? Electromagnet Cylindrical magnet Horse-shoe magnet Bar magnet None 11. A marine compass is used to determine H compare magnetic moments determine dip at a place determine direction None 12. The end of a free hanging magnet which points towards North is called East pole North pole West pole South pole None 13. _______ is the surest test of magnetism. None of the above Attraction Repulsion No change None 14. The presence of magnetic field at a point can be detected by galvanometer a compass needle ammeter strong magnet None 15. Magnet was discovered by 16. Which of the following is not attracted by a magnet? nickel steel bronze cobalt None 17. Magnetic strength of the magnet is Concentrated at one of the poles of the magnet Distributed uniformly throughout the magnet Concentrated at both the poles of the magnet Concentrated in the centre of magnet None 18. The device used by sailors and navigator to know the direction is called Speedometer Wind vane Direction finder Magnetic compass None 19. The marked end of a compass needle always points directly to A magnet's north pole Earth's geographic North Pole A magnet's south pole Earth's geographic South Pole None 20. How will hammering a bar magnet affect Its magnetic strength? None of the above Will not change Is likely to decrease Is likely to increase None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
